The high-quality Seiko Solar models have exceptional value for money. Each one is produced using only in-house components. Prices for these first-rate, solar-powered timepieces start around 120 euros. For this price, you can get the Seiko Solar (SNE039P1) in mint condition. This simple, three-handed watch has a stainless steel bracelet and 37-mm case combined with a black dial. The line indices used to show the hours are coated in Seiko’s luminous Lumibrite material . The weekday and date displays finish off the look of this modest men’s watch.

You can buy the rectangular Seiko Solar (SUP880P1) resembling the Cartier Tank for a similar price. The stainless steel case with gold plating harmonizes well with the black Roman numerals on the white dial. This makes the two-handed watch a classic dress watch perfect for any business suit or evening attire. This timepiece has both men’s and women’s variants, the latter having a delicate 18-mm case. Both versions have a power reserve of up to 12 months .

Another model for women is the Seiko Solar (SUP295P1) set with crystals and featuring a mother-of-pearl dial. This two-handed watch has a 23-mm oval case in stainless steel and appears especially feminine. The chain-like stainless steel bracelet makes the watch feel like a piece of jewelry. Never worn models are priced around 260 euros.

You will also find chronographs in Seiko’s solar collection. Thanks to their precise quartz movement, they can measure time very accurately. The 43-mm Seiko Solar Chronograph (SSC141P1) does so in increments of a fifth of a second for up to 60 minutes. The alarm function at 6 o’clock can also be used to display a second time zone, which is especially useful when traveling. The tachymeter scale appeals especially to motorsport enthusiasts since you can use it to determine a vehicle’s speed. The Solar Chronograph in stainless steel with a blue dial costs around 240 euros new.

The Solar Chronograph (SSC009P3) has a design that is even more geared toward motorsports and offers the same functions as the aforementioned model. The black dial with red accents and bright hour and minute markings is reminiscent of the tachometers found in race cars. The black leather band completes the look and is equipped with a pin buckle. Plan on spending about 250 euros on this model.

Seiko launched the first quartz wristwatch in the world in 1969, and called it the Astron. Since then, this collection has represented the manufacturer’s visionary innovations. The Seiko Astron GPS Solar was the world’s first solar watch with GPS at its introduction in 2012. Using satellite signals, it sets itself to the current local time automatically at regular intervals. You can also change the time zone manually with the push of a button. A small ring antenna under the bezel receives the signals. Since the best reception for GPS signals is outside, it is all the more practical to power this model with solar energy. This means you can charge your Astron Solar while also updating your timezone.

A highly-coveted model is the Seiko Astron GPS Solar World Time Novak Djokovic Limited Edition (SSE105) presented at Baselworld 2016. This limited run of 3,500 luxury watches is dedicated to the famous tennis player Novak Djokovic. He has won multiple Grand Slams and topped the tennis rankings for 223 weeks. It has a titanium case with pink gold plating, and the case back is engraved with Djokovic’s signature. The black ceramic bezel fits perfectly with the black crocodile band. With the specially chosen shimmering blue mother-of-pearl dial, this world time watch with a perpetual calendar is a real showstopper. New models cost around 1,500 euros.

Since watches with solar power are very environmentally and user-friendly, Seiko also uses this technology in its other collections. If you’re looking for a diving watch, you may like the Seiko Prospex Solar Chronograph Diver’s (SSC015P1). This stainless steel model is water resistant to 200 m (20 bar) and has a unidirectional bezel. This increases safety while diving, because unintentional adjustments of the bezel can cause the watch to show longer diving times than intended. With this watch, a diver will never resurface too late, but rather too early, at most. The band has a folding buckle with an additional safety mechanism to keep it securely on your wrist. The indices and hands are coated in LumiBrite luminous material and are set against a black dial, making it is easy to read even in deep waters. You can find a new Solar Chronograph Diver’s starting at 300 euros.